A month after releasing him from their roster, the Bears are set to re-sign free agent defensive back Sherrod Martin, reports Brad Biggs of the Chicago Tribune. The corresponding move for Martin’s signing isn’t yet known, but center Will Montgomery will likely be heading to the injured reserve list after breaking his leg this weekend.

Martin, who turns 31 next Monday, spent the first four seasons of his NFL career with the Panthers, starting 36 games during that stretch, including all but one in 2010 and 2011. The former second-round pick hasn’t played a significant role for an NFL defense since then, though he did earn a couple starts in 2014 for Jacksonville, as well as contributing for the Jaguars on special teams.

Martin survived Chicago’s initial cutdown to 53 players last month, but was one of two players let go on the Sunday after teams’ initital rosters were set, as the Bears claimed a pair of players off waivers. The Troy product will return to the team with safety Antrel Rolle‘s availability in doubt for Week 5. Rolle suffered a right foot injury against the Raiders on Sunday, leaving Adrian Amos, Harold Jones-Quartey, and Chris Prosinski as the only healthy safeties on Chicago’s roster.